/**
 * jaroverlay-maven-plugin : add remove replace content and repackage nested archives
 * 
 * Copyright (C) 2008  Paul Merlin
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.n0pe.jaroverlay.io;


import java.io.IOException;
import java.io.OutputStream;


/**
 * A /dev/null outputstream that only count written bytes.
 * 
 * @author Paul Merlin <eskatos@n0pe.org>
 */
public class OutputStreamCounter
        extends OutputStream {


    int written;


    public OutputStreamCounter() {
        this.written = 0;
    }


    public void write(int b)
            throws IOException {
        written++;
    }


    public void write(byte[] buff)
            throws IOException {
        written += buff.length;
    }


    public void write(byte[] buff, int off, int len)
            throws IOException {
        written += len;
    }


    public void flush()
            throws IOException {
    }


    public void close()
            throws IOException {
    }


    /**
     * Get the written bytes count.
     * 
     * @return Written bytes count.
     */
    public int getWritten() {
        return written;
    }


}
